He told them I want a 3 way now I keep getting offers

Okay. So I've had serious confusion about my sexuality. If I'm lesbian, straight, or even bi. Idk I told my boyfriend about my concussion and he was fine but told me if I was bi could we have a 3 way. I said sure if I approved of the girl.. He told him friends now I'm being called a whore and stuff.. I'm not and freaking out... Do I even have a right to be mad? I'm so confused on what to do.. Someone help